Mighty Brontosaurus Dinos

This is the mighty Brontosaurus, also known as the "Thunder Lizzard". The name "Thunder Lizzard" was given to them because when he walked the earth shook like thunder with each pounding step. He is the largest
Dinosaur yet found. The first Brontosaurus fossils were found in Montana, Wyoming and the Rocky Mountains. 
Imagine seeing this massive creature in action.